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[RFC,17/22] i386: adjust the expected KVM_GET_SUPPORTED_HV_CPUID array size

Message ID 20200904145431.196885-18-vkuznets@redhat.com (mailing list archive)
State New, archived
Headers show
Series i386: KVM: expand Hyper-V features early | expand

Commit Message

Vitaly Kuznetsov Sept. 4, 2020, 2:54 p.m. UTC 
SYNDBG leaves were recently (Linux-5.8) added to KVM but we haven't
updated the expected size of KVM_GET_SUPPORTED_HV_CPUID output in
KVM so we now make serveral tries before succeeding. Update the
default.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
 target/i386/kvm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index cb35f759acaa..70db2ca26313 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -973,7 +973,8 @@  static struct kvm_cpuid2 *try_get_hv_cpuid(CPUState *cs, int max)
 static struct kvm_cpuid2 *get_supported_hv_cpuid(CPUState *cs)
 {
     struct kvm_cpuid2 *cpuid;
-    int max = 7; /* 0x40000000..0x40000005, 0x4000000A */
+    /* 0x40000000..0x40000005, 0x4000000A, 0x40000080..0x40000080 leaves */
+    int max = 10;
     int i;
 
     /*